For the following questions answer them individually
A _________ is a pair of forces, equal in magnitude, oppositely directed, and displaced by perpendicular distance or moment.
Find arc elasticity of demand, if quantity demanded falls from 750 units to 650 units when price of the item is increased from Rs 15 to Rs 20?
Which type of pathogen causes the water-borne disease SARS (Severe Acute Respiratory Syndrome)?